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WorksheetsAcids and Bases
Total questions: 38
Worksheet time: 50mins
Name
Class
Date
1.
In the reaction below, H2SO3 is a(n):
H2SO3 + NaHCO3 --> H2CO3 + NaHSO3
H2SO3 + NaHCO3 --> H2CO3 + NaHSO3
a)
base
b)
acid
c)
conjugate acid
d)
conjugate base
2.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
3.
Changes the color of indicators.
a)
Acids
b)
Bases
c)
All
4.
A substance that can act as both an acid and a base is:
a)
Polyprotic
b)
Neutral
c)
Anhydrous
d)
Amphoteric
5.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
6.
If the pH of a solution is 9, it is a....
a)
acid
b)
base
c)
both
d)
none
7.
Forms hydroxide ions (OH-) in water
a)
Acids
b)
Bases
c)
All
8.
pH less than 7.
a)
Acids
b)
Bases
c)
All
9.
Which of the following is most likely to be basic:
a)
Lemon juice
b)
Vinegar
c)
Laundry detergent
d)
Coke
10.
Turns litmus blue.
a)
Acids
b)
Bases
c)
Salts
d)
All
11.
Which range of numbers represent basic solution?
a)
0-6
b)
7
c)
8-14
d)
3-9
12.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
13.
Electrolyte
a)
Acids
b)
Bases
c)
Salts
d)
All
14.
Feels slippery.
a)
Acids
b)
Bases
c)
All
15.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
16.
A strong acid:
a)
completely dissociates in water
b)
partly dissociates in water
c)
doesn't dissociate in water
d)
has a really high pH
17.
A ___ ionizes almost completely in solution.
a)
weak acid
b)
strong acid
c)
weak base
d)
neutral solution
18.
H2SO4
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
19.
Ba(OH)2
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
20.
HCN
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
21.
magnesium hydroxide
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
22.
HClO3
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
23.
KOH
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
24.
hydrobromic acid
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
25.
acetic acid
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
26.
sodium hydroxide
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
27.
hydrochloric acid
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
28.
Be(OH)2
a)
strong acid
b)
weak acid
c)
strong base
d)
weak base
29.
If the pH of a solution is 3, the OH- ion concentration would be
a)
10^-3
b)
10^-10
c)
10^-11
d)
10^-14
30.
The pOH of sea water is 5.9. What is its pH?
a)
0.0000000083
b)
0.0000013
c)
5.9
d)
8.1
31.
The [H+] is orange juice is 0.00020 M. FInd the pH of orange juice.
a)
1
b)
3.7
c)
10.3
d)
13
32.
What is the hydrogen ion concentration in a solution with pOH = 3.3?
a)
10.7 M
b)
0.00050 M
c)
0.000025 M
d)
2.0 x 10-11 M
33.
What is the conjugate base of C5H5NH+?
a)
C5H5N-
b)
C5H5NH
c)
C5H5N+
d)
C5H5N
34.
In the reaction HC2H3O2 + H2O -----> H3O+ + C2H3O2-, the conjugate base of H3O+ is
a)
H2O
b)
HC2H3O2
c)
C2H3O2-
d)
not shown
35.
What is the conjugate acid of HCO3-?
a)
CO3-
b)
H2CO3
c)
H2O
d)
H+
36.
In the reaction HF + H20 ----> H3O+ + F-, the two acids are
a)
HF and H2O
b)
HF and H3O+
c)
HF and F-
d)
H2O and F-
37.
Which of the following do NOT represent a conjugate acid/base pair?
a)
H3O+/H2O
b)
H2O/OH-
c)
H2CO3/CO3-2
d)
all are conjugate pairs
38.
A conjugate acid is the species that
a)
remains after a base has given up a proton
b)
is formed by the addition of a proton to a base
c)
is formed by the addition of a proton to an acid
d)
remains after an acid has given up a proton
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